Ubuntu修改用户名称和计算机名称

修改用户名称：

切换到root打开如下两个配置文件

vi /etc/passwd?

把我想改的"xxx"这个用户名改为"cyrec"了,保存并退出???vi /etc/shadow??同样把"xxx"改为"cyrec" ,保存并退出???重启后名字就变成了cyrec@xxx-dest-top:?现在要修改计算机名称xxx-dest-top为YYY-ZZZ：?修改有两步：?[1]修改/etc/hosts：sudo vi /etc/hosts

127.0.0.1?????? localhost
192.168.76.21???YYY-ZZZ

# The following lines are desirable for IPv6 capable hosts
::1???? localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
~????????????????????????????????????????????????????????????????????????????? ?
~????????????????????????????????????????????????????????????????????????????? ?
~??????????????????????

[2]修改/etc/hostname
内容为

YYY-ZZZ

保存，退出，重启，就可以了。